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Journal of Intelligent Material Systems and Structures
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Current Understanding on Fracture Behaviors of Ferroelectric/Piezoelectric Materials

Yi-Heng Chen

School of Civil Engineering and Mechanics, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, PR China, yhchen2{at}mail.xjtu.edu.cn

Norio Hasebe

Department of Architecture and Civil Engineering, Nagoya Institute of Technology, Nagoya, 466, Japan

The current understanding on fracture behaviors of ferroelectric/piezoelectric materials are reviewed in this article. Two main obstacles in understanding such fracture behaviors are discussed: (i) the selection of electric boundary condition on crack faces and (ii) the near-tip domain switching or nonlinear zone. Some previous controversial results in theoretical studies and experimental observations are also discussed here; particularly, the inherent load-dependence of the variable tendencies of the crack tip energy release rate against the applied electric field, on the applied mechanical loading level found recently, which reveals that the applied mechanical loading does significantly influence the role played by the applied electric field in piezoelectric fracture.

Key Words: fracture • piezoelectric • electric boundary condition • domain switching • energy release rate

Journal of Intelligent Material Systems and Structures, Vol. 16, No. 7-8, 673-687 (2005)
DOI: 10.1177/1045389X05054330
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B.L. Wang and J.C. Han
Multiple Surface Cracking of a Piezoelectric Layer Bonded to an Elastic Substrate Under Dynamic Anti-plane Electromechanical Impacts
Journal of Intelligent Material Systems and Structures, November 1, 2007; 18(11): 1203 - 1213.
[Abstract] [PDF]